Method of producing varied effects on building material with one basic stone



June 13, 1933. N: P` HARSHBERGER 1,913,666

METHOD 0F PRODUCING VARIED EFFECTS ON BUILDING MATERIAL WITH ONE BASIUSTONE Filed April 11, 1930 l Patented June 13, 1933 I UNITED `STATES PATENT OFFICE NORMAN P. HLAR,SBIBEZRGIIIR,V 0F PASADENA, VCALIFORNIA', ASBIGNOR TO BAKELITE BUILDING YBODUCTS CO. INC., OF NEW YORK, N. Y., A CORPORATION F DELAWARE METHOD OF PRODUCER' G VABIED EFFECTS ON BUILDING' MATERIAL WITH ON'E :BASIC y STONE plantation mea Ap'rn 11, leso. serial m. 443,003.l

i This invention relates to im rovements in method of producing varied e ects on buildvide an improved method of material with one basic stone. t is one of the objects of this invention to provide an improved method of reducing buildin materlal such asis used or roofing and si ing purposes, said method resultin in an article which is weatherproof, ireproo durable, and otherwise well adapted for building purposes.

A further object of this -invention is to proroducing building material by means of which various design effects and lines of demarcation can be created with but one basic stone. ereto fore, it has been common practice to produce designs by employing several grou s of stone or mineral surfacing material o different colors to produce the desired effect.

With the above and other objects in view,

the invention consists of the improved method and all its parts and combinations, as setforth in the claims, and all equivalents thereof.

',In the -accompanying drawing, in which the same reference numerals designate the same parts in all of the views:

Fig. 1 is a sectional viewof a portion of material produced by the improved method;

Fig. 2 1s a similar view showing a modification;

Fig. 3 isa view similar to Fig. 1 on an enlarged scale showing material which is surfaced on both sides and which has surface depressions to form lines of demarcation;

Fig. 4 is a plan view of ar strip of material constructed i'n accordance with 'the method illustrated in Fig. 5; n 4.

Fig. 5 is a sectional view of a portion of material showing an additional modification;

Fig. 6 is a sectional view of a portion of material showing another modification; and

Fig. 7 is a diagrammatic view of the Aap paratus used in producing the material shown in Fig. 6.

In carrying out the improved method, 'an

ordinary web comprising a fabric base 10hav- `ing a coating of bituminous materialll is employed. The bituminous material is preferably covered with a layer `of mineral surwith asbestos fibers or the like. This method results in a very durable article, as the cement grlps the mineral surfacing' and bituminous material and is firmly anchored in' place. Even if the cement, in the course of time, cracks, the waterproof fabric base will hold thefsections together and will protect the roo As a moditicatioii of the method illustrated in Fig. 1, the mineral coated surface may be formed with a plurality of indentations 142 as shown in Fig. 2. When the cement coatmg is applied, it will fill in said indentations and the cement coating will be still more firmly held in place.

The method above described makes it possible' to obtain various design effects or to produce lines of demarcation without using mineral surfacing of different colors as is now the common practice. As shown in Fig. 3, the cement coating may be indented along desired lines las at 15 to create individual unit effects, the indentations producing shadow lines. Fig. 3, it will be noted, shows furthzr, a fabric base which is surfaced on both s1 es.

In Figs. 4 and 5 .an additional method of creating design effects is illustrated. In this form, before the concrete coating is applied,

-a plurality of offset perforations 16 are ythe concrete mixture is applied to the web and said concrete flows into the perforations y to create surface depressions 17 The roduct is then mounted on an additional abric base 10.

In Fig. 6 an additional modification is shown. In this form, the web which has already been or is to be covered with a layer of crushed mineral, is perforated as in Figs.

4 and 5, and the web is run over a-platforml 'which press the material into place. Next,

the Web is mounted onfan additional fabricba'se 10. lfdesir'e'd, 'only one hopper may be employed, said'zhopper delivering a mixture of the crushed mineraLeement,andgas-.

phaltto the rearof .the 'perforations From the foregoing' description, it may be -seentha't the improved' method ni'akes it' possible to 'produce averydurable article in Va simple manner, and to create various effects on the outer surfa'c'e of said finishedA article.' E What- Tclaim is:

- 1. The meth-od of producing'.4 designs" o'n building material consisting.- of pre-forming a. plurality of aperturesV indesired areas in a sheet off-.compositionmaterial,y and coating said material with cement, said cement flowingv into4` the *pre-formed apertures to onlyV partially fill the vsame and thereby leave surface'depressions.'y 2. lThemethod of producing designs son buildingmaterial consisting. of pre-formingv a plurality of apertures: indesired areas in a sheet 'of fabric basedmaterial, and coating said material' with a weather resisting 4 sub- A'same and thereby 'leave su stance, said substancev flovving'into the prefor-med apertures' to only partially 'llthe race depressions. "3, The .method oflproducing designs on building material consisting. of pre-formingl a plurality 'of vapertures 'in desired areas'in -a sheet of fabric based material, coating said material with cement, said' cement iowing into the pre-formed apertures'A to only. 'par-.

' tiallyilltthe same and lthereby vleave surface Vdepressions,'and mounting the apertured materialon a base.

"4. The "methodof producing designs-fon .building material consisting ofl pre-forming'- a' plurality of apertures .in desired areas in a sheet offabricjbased'[materiah coating said material with a"Wea'ther'-resistingsubstance,

said; substance Howinginto the pre-,formed 'apertures to only, partially' lill thesame and thereby .leave' surface .-depressions', and

mounting the apertured .material on a base.

5.` "'lf`he method. 'of ,producing 'shingle elements 'consisting of applying Vtofa moving iibr'ous hase a layer" comprising fa f multiplicity of individual. mineral pieces, applying during manufacturein a'plane above the min-eral layer-a coating comprising lhydrau-l lic cement, cutting into shinglesize's, and per.- -jmitting'the coating to set' ,a ft er. it has been applied, said mineral-pieces' serving as the 4prifnclpagl means of bonding said-coating in asie place, and said coating having-a' thicknessv greater than the. total thickness of said mineral, pieces.-

6. Themethod of producing shingle elements"consisti ng of applyingm to a moving waterproofed 'fibrous base- ,a layer comprising a multiplicity of individual mineral pieces, and applying' during manufacture a Aplane above the- 4mineral layerl a coating' comprising hydraulic cement permitting the coating4 to set 4after it hasbeen Aapplied and cutting into shingle sizes, said mineral pieces serving as the principal means of bonding said coating 'in place, and said coating having a thickness greater .than the total thick.- ness of saidmineral'pieces.

7. The method 'of producing'building'materialconsisting or' .uniting a fabriebase with mineral particles and then .coatin said par'- tiel'es with cementv and creating epressions in said cement coating -to produce shadoweffects for creating a desired design, said cement' being capableof chemically. reacting to 'cause permanents'etting thereof,

8. lThe method of producing shingle elements consistingin the steps of applying the surface' of a 'moving web, mineral par'- ticles, .and 'thencoating 'said lmineral parlticles withalayer of .hydraulic cement, said. cement layer 'havinga thickness greater than 'the thickness of said mineralparticles, and being anchored to said shingle element through the medium ofA said mineral -par-v ticlesonly,

9.. The method, of producing shingle ele- Aments consisting in thfe steps of applying to lthe surfaceofa movingvveb, mineral particles, and then. coating said' mineral particles with a layer of-hydraulic cement and -ibres, ysaid cement-layer having a. thickness greater than the thicknessfof said mineral particles, and being anchoredt'o said 'shingle 'element vthrough the medium of said mineral particles 'only.

, 1o.A The mah-auf man@ingrsisngleV en-' mentsconsisting of', applying to. -a moving fabric base a llayer ornaterial which will;

vforni a rough surface Athereon and applyingv during manufacture a coating of hydraulicy cement ov'er'said rough surface, said cement' coating having a Athickness greater than the thickness of -said rough "surface, the latter serving as the principalmeans-'o bonding the 'cement in place.

11. As a new' article-'of manufacture, 2a'

shingle element cut from a moving' ibrous web comprising a fibrous base, a: layer -oJ mineral particles fixed to, said' base and" al thickflayer ofhydraulic "cement, covering '25,

and having 'its' uppermost surface Wholly above, said n iineral layer?- and anchored in place bysaiti mineral-particles. 1,

shingle element comprising 'a" nat wholly ilexibl'e-fibrous hase, a layer-'of crushed slate miv p imanes fixed to: said..base-, and a layerv of hydraulic' cement covering and :having its uppermost surface V Wholl above said slate layer 'and anchored in p acc'by thelatter. v y 5 13. a, new article of:y manufacture, 'a

shingle element cut from a. moving fibrous web co'mprsing'n. iibrous bse, a layer of mineral .particles fixed tosaid basev and a layer of hydraulic cementV with'an' aggregate ap- 10 plied as a wash, covering and having its up, permostsurace Vwholly-above 'saidA mineral layer andanchored in place by said mineral' particles. A. y 4- 14. The method -ofproducing designson 1.5 building 4material comprising thefstps 0f preforming a plurality of apertures in des ired areas' in av sheet of mineral surfaced composition roofing and ycoatin said material withcement, said cement owing into 20' the preformed aperturesto onlypartiallyll 'the same and thereby leave surface depressions. v

I n testimon whereof I aixmy signature.

NOR AN P.- HARSHBERGER. 

